* s3api: fix ListObjectsV2 dropping objects under a partial prefix
ListObjectsV2 with a prefix that names only part of a directory name -
"data/a" matching both "data/a/..." and "data/ab/..." - dropped objects
when paginating with a small max-keys, reporting IsTruncated=false before
all matching keys had been returned.
On resume, normalizePrefixMarker took the listing directory from the
continuation marker ("data/a/") and discarded the "a" name prefix, so once
the marker's subtree was exhausted the sibling directories that also
matched the prefix were never listed.
Resolve the listing directory and name prefix from the prefix instead of
the marker, so siblings sharing the name prefix are still listed after the
marker's subtree.
Fixes#10652
* s3api: cover a sibling-directory marker in the partial prefix tests
* s3api: resume a truncated delimited listing from the emitted CommonPrefix
Rebuilding the continuation token from the request dir plus the listing prefix
assumes that prefix names a directory. With a partial name prefix like "data/a"
it produced "data/a/ab/" for the sibling prefix "data/ab/", so the next page
resumed in the wrong subtree and repeated it forever.
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Co-authored-by: Chris Lu <chris.lu@gmail.com>
see https://blog.aqwari.net/xml-schema-go/
1. go get aqwari.net/xml/cmd/xsdgen
2. Add EncodingType element for ListBucketResult in AmazonS3.xsd
3. xsdgen -o s3api_xsd_generated.go -pkg s3api AmazonS3.xsd
4. Remove empty Grantee struct in s3api_xsd_generated.go
5. Remove xmlns: sed s'/http:\/\/s3.amazonaws.com\/doc\/2006-03-01\/\ //' s3api_xsd_generated.go
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